#Bẻox_Rebecca
Câu 1:
`3/2-2/3:2`
`=3/2-1/3`
`=7/6`
Câu 2:
`x:2/3=1/2`
`x=1/2` x `2/3`
`=>x=1/3`
Vậy `x=1/3`
Đáp án:
a) `\frac{3}{2} - \frac{2}{3} : 2 = \frac{3}{2} - \frac{1}{3} = 1\frac{1}{6}`.
b)
`x : \frac{2}{3} = \frac{1}{2}`
`x = \frac{1}{2} . \frac{2}{3}`
`x = \frac{1}{3}`
Vậy `x = \frac{1}{3}`.
Chúc học tốt!!!!
rút gọn biểu thức sau: B= 3(c-2d)(c+2d)^2+3(c-2d)^2(c+2d)(c+2d)^3+ (c-2d)^3 mọi người giúp em với ạ em đang cần gấp
rúi gọn rôì tính gía trị biểu thức căn bậc hai(9*x^2 -12*x + 4) + 1 -3*x tại x = 1/3
* Reported speech with gerund “ Ving ” 1. " I'm sorry. I didn't phone you earlier" said Peter -> Peter apologized................................................................................................................................ 2. " Let's go out for dinner tonight" He said -> He suggested........................................................................................................................................ 3. " What about going to the cinema tonight?" said Mary -> Mary suggested.................................................................................................................... 4. " It's me. I've broken your glass" said the boy ->The boy admitted.................................................................................................................................. 5. " It was very kind of you to help me. Thank you,” Mr. Brown said to Peter -> Mr Brown thanked............................................................................................................................. 6. “ I hear you passed your exams. Congratulations! ” John said to us. John congratulated……………… …………………………………………………………………. 7. “ I’ll drive you to the station. I insist,” Peter said to Linda. Peter insisted on……………………………………………………………………………………… 8. “ You didn’t pay attention to what I said,” the teacher said to the boy. The teacher accused…………………….…………………………………………………………… 9. “ I’ve always wanted to be rich,” Bob said. Bob has always dreamed……………………………………………………………………............ 10. “ Don’t stay at the hotel near the airport,” I said to Ann. I warned…………against……………………………………………………………………………. 11. “ Stay here! I can’t let you go out at night,” her mother said to Jane. Her mother prevented………………………………………………………………………………… 12. “ It was very nice of you to visit me. Thank you,” Miss White said to Jack. Miss White thanked…………………….……………………………………………………………. 13. “ I haven’t broken the window of your house. I don’t know anything about it” said the boy. The boy denied………………………………………………………………………………………..
Write the FULL WORD in the answer box E.g: 1. Beth is so r_________e. When she says she’ll do something, she’ll do it! reliable USE / to separate answers E.g: read/eat 4.2. My sister is so kind and c………….g. She always helps other people. 5.3. I’m going to ask Laura for advice. She always tells the truth. She’s really h………….t. 6.4. As a teacher, you need to be p………….t. Some people learn more slowly than others and can be quite s………….e when you correct them. 7.5. I’m seeing Paul tomorrow and I hope he’s finished his part of the project. He can be so l………….y sometimes! 8.6. I get really nervous when I have to speak in front of people. I’m so s………….y. I wish I was more c………….t. 9.7. You have to be a………….s and h………….d-w………….g to do well at work. You should set clear goals and think about how you are going to reach them. 10.8. Running your own company means that you need to be o………….d. There’s a lot to do and not a lot of time to do it. 11.9. One of the hardest things about being a writer is being c………….e. It isn’t always easy to think of new ideas.
Bài 5: Cho mạch điện như hình vẽ bên. Biết R1 = 12Ω, R2 = 8Ω, R3 = 16Ω. Hiệu điện thế giữa hai đầu đoạn mạch là U = 48V. a. Cho RX = 14Ω. Tính điện trở tương đương của đoạn mạch và cường độ dòng điện trong mạch chính. b. Xác định RX để cường độ dòng điện qua RX nhỏ hơn 3 lần so với cường độ dòng điện qua điện trở R1.
Passive Voice : modal verb giúp mình với ạ mình cần gấp
Giúp mình với ạ mình cần gấp ạ.
Lớp 4a và 4b trồng cây tham gia trồng cây, lớp 4a trồng nhiều hơn 4b 16 cây. Nếu lớp 4a trồng thêm 20 cây, 4b trồng thêm 16 cây thì cả 2 lớp trồng được 400 cây. Hỏi mỗi lớp trồng đc bao nhiêu cây? giải bằng 2 cách? vẽ sơ đồ đoạn thẳng cho bài toán
Làm giúp mình nha! Mình cho 5sao+ctlhn
Làm phép nhân: (cuối) $\frac{x^2-9}{x+5}$ $.$ $\frac{2x}{x+3}$ $+$ $\frac{x^2-9}{x+5}$ $.$ $\frac{5-x}{x+3}$
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